I’m currently considering resistor-color-trio, space-age, complex-numbers and ocr-numbers. What exercise would you guys want to see in this track?
The first three are useful because they map well, I think, to the low level-ness of webassembly. Resistor-color-trio would be nice, so that you have all the known and beloved trio of resistor color exercises (sorry 
).
Ocr-numbers is more interesting, though, as it’s a bit more complex – I’d definitely prefer to solve that one of the four.
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69 tracks implement Space Age, 35 for Resistor Color Trio, 28 for Complex Numbers, and 27 for OCR. It’s up to you and the maintainer to decide what should be implemented, but I think Complex Numbers or OCR Numbers would be interesting in part for their relative rarity on Exercism. They also seem more complex which might lead to more mentoring discussions.
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Wonderful, thank you. OCR numbers it is, then.
As an aside, I would volunteer as a maintainer for the wasm track.
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And here is the PR: new exercise: ocr-numbers by atk · Pull Request #148 · exercism/wasm · GitHub
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For complex-numbers, exponentiation is a really difficult task. You need exp(n) as well as radial sin and cos, none of which are readily available in wasm.
If we ask for a custom implementation of those functions, I would set the difficulty to 8, otherwise to 4.
Other exercises include Affine Cipher, Nth Prime, State of Tic-Tac-Toe.
Those are on my list, together with Clock, Binary, Bottle Song, Bowling, Pascal’s Triangle, Rectangles, Secret Handshake and a lot more…
Forgot about this, sorry; I already have a solution prepared for Bottle Song. Anyways, I can still publish it once you’ve added the exercise. I have also prepared Clock and next on my list after those two would be affine cipher.